Elon Musk escalated tensions in the critical artificial intelligence race Thursday, asserting his most advanced AI model, Grok 4 Heavy, was already outperforming OpenAI’s newly launched GPT-5 two ...

Grok 4 had lower lmarena scores than I had projected based upon the amount AI training compute used. I had projections for Grok 3.5 which was renamed Grok 4. We do not have elo lmarena score for Grok ...

When xAI launched Grok 4 last week, the company claimed the large language model outperformed several competitors on different benchmarks. But the Grok account on X that runs off the model immediately ...

Artificial intelligence large language models are being deployed more frequently in sensitive, public-facing roles, and sometimes they go very wrong. Recently Grok 4, the LLM developed by X.AI Corp.

Anthropic is releasing an open source method to evaluate the political "evenhandedness" of AI chatbots, the company said Thursday. Why it matters: The move comes amid a complicated battle over how ...

The update marks one of the most significant leaps yet in xAI’s push to create highly capable, emotionally aware, and human-aligned AI systems. “Personality goes a long way,” was a line from the movie ...

Elon Musk-owned xAI is testing Grok 4.20, a new model update to Grok 4, which already competes with GPT-5 in some benchmarks, such as ARC-AGI 2. GPT-5 is one of the best models for coding, and it ...

Is Grok 4.2 the most intelligent coding model we’ve seen yet? With its release in January 2026, this AI powerhouse has already sparked conversations across the tech world. In this comparison, World of ...

With all the AI news coming out each week, some of the more significant advancements can be hard to track. Grok 4 Fast is streamlined version of xAI's flagship Grok 4 model released back in July 2025.